Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jonker, W (Waldo)

Chess SA id

167014324

FIDE id

Date of birth

1967-10-27 (Adult)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-09-28

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1702	1740.8	1659	1648.7
Raw rating	1702	1740.8	1659	1648.7
Weighted rating	1701.9	1740.8	1659	1648.7
Weighted performance	288.2	0	0	0
Floor	1272	1272	1272	1272
K-factor	28	28	28	28
Min/Max rating change allowed	81.1	76.7	86.2	87.5
Highest rating	1772 2018-01-01	1772 2018-12-01	1772 2018-04-01	1772 2018-01-01
Highest raw rating	1772 2018-01-01	1772 2018-01-01	1772 2018-01-01	1772 2018-01-01
Highest weighted rating	1772 2018-01-01	1772 2018-12-01	1772 2018-04-01	1772 2018-01-01
Highest weighted performance	1439.4 2019-09-01	1577.6 2019-09-01	1482.6 2018-05-01	1567.2 2018-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1702	1740.8	1659	1648.7
Analysis
Rating	1702	1740.8	1659	1648.7
Raw rating	1702	1740.8	1659	1648.7
Weighted rating	1701.9	1740.8	1659
Weighted performance	288.2	0	0
K-factor	28	28	28	28
Floor	1272	1272	1272	1272
Max/Min rating change allowed	81.1	76.7	86.2	87.5
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1702	1740.8	1659	1648.7
New weighted rating	1702	1740.8	1659	1648.7
New weighted performance	279.8	0	0	0
Temp new rating	1702	1740.8	1659	1648.7
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1702	1740.8	1659	1648.7
New K-factor	28	28	28	28
New floor	1272	1272	1272	1272

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	112	40	29	43

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	59	36	61.02	93.6	1477.2	1570.9
Standard	5	2	40	-85	1651.1	1566.1
Rapid	20	13	65	127.5	1414.9	1542.4
Blitz	34	21	61.76	100	1488.3	1588.3

Date	Main	Standard	Rapid	Blitz
2025-11-01	1702	1740.8	1659	1648.7
2025-09-30	1702	1740.8	1659	1648.7
2025-09-01	1702	1740.8	1659	1648.7
2025-08-01	1702	1740.8	1659	1648.7
2025-07-01	1702	1740.8	1659	1648.7
2025-06-01	1702	1740.8	1659	1648.7
2025-05-01	1702	1740.8	1659	1648.7
2025-04-01	1702	1740.8	1659	1648.7
2025-03-01	1702	1740.8	1659	1648.7
2025-02-01	1702	1740.8	1659	1648.7
2025-01-01	1702	1740.8	1659	1648.7
2024-12-01	1702	1740.8	1659	1648.7
2024-11-01	1702	1740.8	1659	1648.7
2024-10-01	1702	1740.8	1659	1648.7
2024-09-01	1702	1740.8	1659	1648.7
2024-08-01	1702	1740.8	1659	1648.7
2024-07-01	1702	1740.8	1659	1648.7
2024-09-01	1702	1740.8	1659	1648.7
2024-05-01	1702	1740.8	1659	1648.7
2024-04-01	1702	1740.8	1659	1648.7
2024-03-01	1702	1740.8	1659	1648.7
2024-02-01	1702	1740.8	1659	1648.7
2024-01-01	1702	1740.8	1659	1648.7
2023-12-01	1671.8	1740.8	1656.8	1648.7

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2019 Centurion Open (A)	2019-09-28	2019-09-28	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
2	2019 SWVG Arnold Classic (Rapid Open)	2019-05-18	2019-05-19	Rapid	Tshwane (GTP)	10	10	6.5	Yes	Analysis
3	2019 SWVG Arnold Classic (Blitz Open)	2019-05-19	2019-05-19	Blitz	Tshwane (GTP)	10	10	7	Yes	Analysis
4	South African Junior Blitz 2018 (Open)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	4	Yes	Analysis
5	SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Open)	2018-05-19	2018-05-20	Rapid	Tshwane (GTP)	10	10	6.5	Yes	Analysis
6	SWVG Arnold Classic Rapid & Blitz 2018 (Blitz Open)	2018-05-19	2018-05-20	Blitz	Tshwane (GTP)	10	10	6.5	Yes	Analysis
7	South African Junior Blitz 2017 Championships (A)	2018-01-07	2018-01-07	Blitz	4 Knights (4K)	7	7	3.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 1	type Rapid	result 0.5	date 2018-05-19	rnd 5	type Rapid	result 1
		Opponent Sikhwivhilu, S (Se)				Opponent Maloba, DE (David)
2	4	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 1	type Blitz	result 1	date 2019-05-19	rnd 4	type Blitz	result 1
		Opponent Nxumalo, V (Vuyo)				Opponent Nxumalo, B (Banele)
3	4	Tournament South African Junior Blitz 2018				Tournament 2019 SWVG Arnold Classic
		date 2018-12-19	rnd 6	type Blitz	result 1	date 2019-05-18	rnd 2	type Rapid	result 0.5
		Opponent Tissot Van Patot, A (Anton)				Opponent Nsibande, B (Bonisani)

#	Games	Start				End
1	2	Tournament 2019 Centurion Open				Tournament 2019 Centurion Open
		date 2019-09-28	rnd 2	type Standard	result 0.5	date 2019-09-28	rnd 3	type Standard	result 0.5
		Opponent Nkuna, A (Andrew)				Opponent Vather, S (Shayur)
2	1	Tournament 2019 Centurion Open				Tournament 2019 Centurion Open
		date 2019-09-28	rnd 5	type Standard	result 1	date 2019-09-28	rnd 5	type Standard	result 1
		Opponent Jacobs, CN (Calvin Nicholas)				Opponent Jacobs, CN (Calvin Nicholas)

#	Games	Start				End
1	5	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 1	type Rapid	result 0.5	date 2018-05-19	rnd 5	type Rapid	result 1
		Opponent Sikhwivhilu, S (Se)				Opponent Maloba, DE (David)
2	4	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament 2019 SWVG Arnold Classic
		date 2018-05-20	rnd 9	type Rapid	result 1	date 2019-05-18	rnd 2	type Rapid	result 0.5
		Opponent Nonyana, RT (Reginald)				Opponent Nsibande, B (Bonisani)
3	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 4	type Rapid	result 1	date 2019-05-18	rnd 6	type Rapid	result 1
		Opponent Pule, M (Matome)				Opponent Phihlela, PF (Phuti)

#	Games	Start				End
1	6	Tournament South African Junior Blitz 2018				Tournament 2019 SWVG Arnold Classic
		date 2018-12-19	rnd 6	type Blitz	result 1	date 2019-05-19	rnd 4	type Blitz	result 1
		Opponent Tissot Van Patot, A (Anton)				Opponent Nxumalo, B (Banele)
2	4	Tournament South African Junior Blitz 2017 Championships				Tournament South African Junior Blitz 2017 Championships
		date 2018-01-07	rnd 3	type Blitz	result 0.5	date 2018-01-07	rnd 6	type Blitz	result 1
		Opponent Mangonyane, PG (Pule)				Opponent Bester, C (Carla)
3	3	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 1	type Blitz	result 1	date 2018-05-19	rnd 3	type Blitz	result 1
		Opponent Grobler, S (Stefan)				Opponent Laureles, R (Raymundo)

#	Games	Start				End
1	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 4	type Rapid	result 1	date 2019-05-18	rnd 6	type Rapid	result 1
		Opponent Pule, M (Matome)				Opponent Phihlela, PF (Phuti)
2	3	Tournament South African Junior Blitz 2018				Tournament 2019 SWVG Arnold Classic
		date 2018-12-19	rnd 6	type Blitz	result 1	date 2019-05-18	rnd 1	type Rapid	result 1
		Opponent Tissot Van Patot, A (Anton)				Opponent Jacobs, GJ (Gerhard)
3	3	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-05-20	rnd 9	type Rapid	result 1	date 2018-12-19	rnd 1	type Blitz	result 1
		Opponent Nonyana, RT (Reginald)				Opponent Badenhorst, N (Nicolaas Jacobus)

#	Games	Start				End
1	1	Tournament 2019 Centurion Open				Tournament 2019 Centurion Open
		date 2019-09-28	rnd 5	type Standard	result 1	date 2019-09-28	rnd 5	type Standard	result 1
		Opponent Jacobs, CN (Calvin Nicholas)				Opponent Jacobs, CN (Calvin Nicholas)

#	Games	Start				End
1	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-18	rnd 4	type Rapid	result 1	date 2019-05-18	rnd 6	type Rapid	result 1
		Opponent Pule, M (Matome)				Opponent Phihlela, PF (Phuti)
2	3	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament 2019 SWVG Arnold Classic
		date 2018-05-20	rnd 9	type Rapid	result 1	date 2019-05-18	rnd 1	type Rapid	result 1
		Opponent Nonyana, RT (Reginald)				Opponent Jacobs, GJ (Gerhard)
3	2	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 9	type Rapid	result 1	date 2019-05-19	rnd 10	type Rapid	result 1
		Opponent Matuse, J (Jersen)				Opponent Louw, I (Ireon)

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2018				Tournament 2019 SWVG Arnold Classic
		date 2018-12-19	rnd 6	type Blitz	result 1	date 2019-05-19	rnd 2	type Blitz	result 1
		Opponent Tissot Van Patot, A (Anton)				Opponent Nsibande, B (Bonisani)
2	3	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 1	type Blitz	result 1	date 2018-05-19	rnd 3	type Blitz	result 1
		Opponent Grobler, S (Stefan)				Opponent Laureles, R (Raymundo)
3	2	Tournament 2019 SWVG Arnold Classic				Tournament 2019 SWVG Arnold Classic
		date 2019-05-19	rnd 9	type Blitz	result 1	date 2019-05-19	rnd 10	type Blitz	result 1
		Opponent Ristic, A (Andrej)				Opponent Laureles, R (Raymundo)

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Jacobs ,CN (Calvin Nicholas)	2	2	425	1	1	425	1	1	425	0	0	0
1	Jacobs ,CN (Calvin Nicholas)	2	1437.7	1862.7	1	1487.7	1862.7	1	760.8	1862.7	0	0	0
2	Bester ,C (Carla)	2	1	0	1	0	-425	0	0	0	1	1	425
2	Bester ,C (Carla)	2	1396.5	1396.5	1	1449.4	971.5	0	0	0	1	1336.1	1821.5
3	Phihlela ,PF (Phuti Frans)	2	1	0	0	0	0	1	1	425	1	0	-425
3	Phihlela ,PF (Phuti Frans)	2	1624.9	1624.9	0	0	0	1	1631.6	2049.9	1	1631.6	1199.9
4	Nsibande ,B (Bonisani)	2	1.5	212.5	0	0	0	1	0.5	0	1	1	425
4	Nsibande ,B (Bonisani)	2	1516.5	1729	0	0	0	1	1227.5	1516.5	1	1347.9	1941.5
5	Moche ,J (Johannes)	2	0	-425	0	0	0	1	0	-425	1	0	-425
5	Moche ,J (Johannes)	2	1717.9	1292.9	0	0	0	1	1696.2	1292.9	1	1690.9	1292.9
6	Ndhlovu ,BB (Bhekisisa Bayani)	2	1	0	0	0	0	1	1	425	1	0	-425
6	Ndhlovu ,BB (Bhekisisa Bayani)	2	1484.9	1484.9	0	0	0	1	1467.1	1909.9	1	1467.1	1059.9
7	Govender ,S (Shevern)	2	1.5	212.5	0	0	0	1	0.5	0	1	1	425
7	Govender ,S (Shevern)	2	1312.1	1524.6	0	0	0	1	1131.3	1312.1	1	1131.3	1737.1
8	Nxumalo ,V (Vuyo)	2	1	0	0	0	0	1	0	-425	1	1	425
8	Nxumalo ,V (Vuyo)	2	1347.7	1347.7	0	0	0	1	1370	922.7	1	1370	1772.7
9	Bucceri ,DR (Draven Ricardo)	2	1	0	0	0	0	0	0	0	2	1	0
9	Bucceri ,DR (Draven Ricardo)	2	1610.4	1610.4	0	0	0	0	0	0	2	1634	1610.4
10	Laureles ,R (Raymundo)	2	2	425	0	0	0	0	0	0	2	2	425
10	Laureles ,R (Raymundo)	2	1583.6	2008.6	0	0	0	0	0	0	2	1671.5	2008.6

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Jonker, W (Waldo)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms